Can anyone please help with a source or links to a site where I can find the spectral emission line data for metals? This is mainly to help identify the metal salts used in metal-halide lamp manufacture. The data for the less common metals such as Dysprosium, Holmium, Scandium, Thallium, Thulium, Indium etc are the ones I'm most interested in. Many thanks for any info.
JB